Updated Detached Duplex with
New
For Sale
$1,799,999
31 E Tenafly Avenue, Staten Island, NY 10312
Residential, Staten Island, NY
Property Size3,369 SF
Lot Size0.13 Acres
Price / SF$534.28
Days on Market3
Property Features for 31 E Tenafly Avenue
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
R3X
Bathrooms
5
Full bathrooms
4
Half bathrooms
1
Rooms
Bathroom 2, Bathroom 5, Bathroom 4, Bathroom 1, Bathroom 3
Parking features
Garage - Attached
Interior features
Central Air, Central Vacuum, Fireplace, Pool
Fireplace
1
Basement
Finished
Subdivision
Annadale
Standard status
Active
Size
3,369 SF
Lot size
0.13 Acres
Taxes and HOA fees
Tax Annual Amount
11919
Amenities
pool
barbeque
garage
security system
attic
skylights
solar panels
shed
backyard
hardwood floors
custom kitchen
fireplace
laundry room
pantry
storage room
utility room
basement
Building Details
Year built
1989
Floors in Building
2
Number of units
1
Flooring type
Hardwood
Building materials
Wood Frame
Roof type
Shingle
Listing Agency:
John A Maguire Real Estate, LL
(718) 836-4330
Listed By:
Steven Maguire Jr.
(718) 836-4330
Added: Aug 21
Changed: Aug 22
Last Checked: Aug 23 at 3:06AM
MLS# 503968
Copyright © 2026 Brooklyn New York Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
This fully detached duplex in Staten Island offers a 3,369-square-foot residential layout with a three-bedroom primary residence and an oversized one-bedroom apartment. The main home includes four bathrooms, hardwood flooring, a wood-burning fireplace, custom kitchen finishes, multiple living and dining areas, and four-zone baseboard heating with two-zone central air conditioning. The apartment includes baseboard heat, two A/C units, and in-unit laundry.
A finished basement contributes an additional 1,800 SF and contains a full bathroom, laundry area, pantry, storage, utility space, secondary kitchen, and great room. Exterior amenities include a heated in-ground pool with gas heater, paver backyard, gas-connected barbecue, shed, cement driveway, and built-in two-car garage. The property also features solar panels, skylights, an eight-camera security system, and a floored attic. Built in 1989 on 0.1304 acres, the home is zoned R3X and located near shopping, parks, local transportation, and express bus service to Manhattan.
A finished basement contributes an additional 1,800 SF and contains a full bathroom, laundry area, pantry, storage, utility space, secondary kitchen, and great room. Exterior amenities include a heated in-ground pool with gas heater, paver backyard, gas-connected barbecue, shed, cement driveway, and built-in two-car garage. The property also features solar panels, skylights, an eight-camera security system, and a floored attic. Built in 1989 on 0.1304 acres, the home is zoned R3X and located near shopping, parks, local transportation, and express bus service to Manhattan.
Key Highlights
- Fully detached duplex with a three‑bedroom main residence and oversized one‑bedroom apartment
- 3,369 square feet on a 0.1304‑acre lot
- Finished basement adds 1,800 SF with kitchen, full bathroom, laundry, storage, and great room
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$83,251
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
4.63%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,665,020
$1.7M
Cap Rate 7%
$1,189,300
$1.2M
Cap Rate 9%
$925,011
$925.0K
Market Conditions
NOI Build-Up for 3,369 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$129.4K $38.40/SF
− Vacancy
−$10.4K −$3.10/SF
EGI
$118.9K $35.30/SF
− OpEx
−$35.7K −$10.59/SF
NOI
$83.3K $24.71/SF
Area
ZIP 10312
Vacancy
8.07%
Lease Rate
$38.40 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,665,020
Cap Rate 7%
$1,189,300
Cap Rate 9%
$925,011
Alternative Uses
Best Use
Multifamily LT 5
$1.19M
$1.04M – $1.39M
NOI $83,251 @ 7.0% cap · market cap 4.63%
Second Best
Apartment 5plus
$1.05M
$915.5K – $1.22M
NOI $73,243 @ 7.0% cap · market cap 4.07%
Theoretical Best
Office A
$1.61M
$1.41M – $1.88M
NOI $112,525 @ 7.0% cap · market cap 6.25%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
403
Businesses Nearby
Explore this area
Business Placement
Demographics for 10312, NY
61,642
Population
22,547
Households
2.7
Avg Household Size
43
Median Age
41%
College-Educated
92%
High-School Grad
6.9 sq mi
ZIP Area
8,934
Density / Sq Mi
$111,434
Median Household Income
$62,700
Median Earnings
$1,911
Median Rent
$698,900
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Two-unit residence with a finished basement, attached garage, and private heated pool.
Where is this duplex located?
The property is located at 31 E Tenafly Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $1,799,999.
What are key features of this property?
This property features: Fully detached duplex with a three‑bedroom main residence and oversized one‑bedroom apartment; 3,369 square feet on a 0.1304‑acre lot; Finished basement adds 1,800 SF with kitchen, full bathroom, laundry, storage, and great room
